/*
 * Copyright 2008 Eckhart Arnold (eckhart_arnold@hotmail.com).
 * 
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at
 * 
 * http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 */

package tddd24.ajgallery.client.gwtphotoalbum;

/**
 * Indicates that a widget allows adding attachment listeners.
 * 
 * @author ecki
 *
 */
public interface SourcesAttachmentEvents {
  /**
   * Add an {@link AttachmentListener} to the widget.
   * @param listener  the listener to be added 
   */
  void addAttachmentListener(AttachmentListener listener);
  /**
   * Removes an {@link AttachmentListener} from the widget.
   * @param listener  the listener to be removed
   */
  void removeAttachmentListener(AttachmentListener listener);  
}
